Currys price promise

donnajunkie

How do i take advantage of the currys price promise on their website. Ideally I want to buy and then collect in store. On the product wh-1000xm4 I click price promise and it shows amazon £20 cheaper. How do i get it to give me this price? I can't see what to do to get it. Note though when looking at amazon it isn't actually cheaper but if currys list it as cheaper in the price promise section then won't they do it?
Anyway my main query is how do i go about it on the website as I said. 

jon81uk

This page Price promise | Currys says go on webchat with them.

Penguin_

You might not get this as it says the last time they checked the price on amazon was at 6am on the 12th July. On Amazon now, they are selling for £229.